On average though, a reasonable very rough assumption is 0.5 kg CO2 / dollar (from what I read). You could make a complex model, but simply saying money = consumption = CO2 is a straightforward starting point.
A given employee might or might not fly or whatever. But statistically, the average is going to be pretty predictable, and it's not intellectually honest to pretend that because one doesn't know individual behavior, the average could be anything.
A given employee might or might not fly or whatever. But statistically, the average is going to be pretty predictable, and it's not intellectually honest to pretend that because one doesn't know individual behavior, the average could be anything.